This probably won't help you but just to document my experience.
I have perfectly calibrated system which works flawlessly printing from Photoshop CS3, than I upgrade to CS4 and I got all prints too dark and with wrong colors. Red become dark chocolate, brown was dominant color of the every picture, no matter what is the subject, landscape or portrait. I spent huge amount of time to solve that problem, not to mention ink and paper. Several printers were tested HP ProB 9180, HP 9880, HP 8850. I upgrade drivers, finally upgrade Windows to version 7, nothing helps. Than I just go back to Photoshop CS3 – wow everything is perfect again. Now I happily print from CS3 on all of my printers including Z3100 and Epson 9800 and never again tried to upgrade anything on system that works perfectly.